韦布望远镜拍下恒星育婴室 NGC 7129：3300 光年外的恒星喷流
美国国家航空航天局 NASA 公布了詹姆斯·韦布空间望远镜拍摄的恒星形成区 NGC 7129 的最新图像。这片「恒星育婴室」位于仙王座方向，距离地球约 3,300 光年，画面横跨约 6 角分，相当于约 5.7 光年的宽度，中央一颗年轻恒星正向外喷出强劲的气体喷流。
图像的色彩来自不同状态的氢气：金色区域是被年轻恒星加热的高温原子氢，红色区域则是受到原恒星喷流冲击、温度较低的分子氢。位于画面中心的恒星名为 LkHα 234，质量估计为太阳的 5 至 8 倍，它喷出的物质流正在周围的气体尘埃云中雕刻出复杂结构。
这幅图像由韦布望远镜的近红外相机（NIRCam）于 2025 年 12 月 17 日观测取得，使用了 F115W、F187N、F200W、F335M、F444W 与 F470N 六种滤光片的数据合成。天文学家希望通过这类观测，弄清大质量恒星在诞生早期如何通过喷流与辐射影响周围环境、进而影响新一代恒星与行星的形成。
该图像由美国、欧洲与加拿大三方合作的韦布望远镜项目发布，数据来自编号 12491 的观测提案，图像处理由太空望远镜科学研究所的 Alyssa Pagan 完成，署名为 NASA、ESA、CSA 与 STScI。
Webb Captures Stellar Jets in Star-Forming Region NGC 7129: A Nursery 3,300 Light-Years Away
NASA has released a new image of the star-forming region NGC 7129 taken by the James Webb Space Telescope. The stellar nursery lies about 3,300 light-years from Earth in the constellation Cepheus. The frame spans roughly 6 arcminutes, about 5.7 light-years across, and shows a young star at its center driving powerful jets of gas into the surrounding cloud.
The colors trace hydrogen in different states: gold marks hot atomic hydrogen heated by the young stars, while red shows cooler molecular hydrogen shocked by the protostellar jets. The bright star near the center, LkHα 234, is estimated at five to eight times the mass of the Sun, and its outflows are carving intricate structures into the gas and dust around it.
The image was captured by Webb's Near-Infrared Camera (NIRCam) on December 17, 2025, combining data from six filters: F115W, F187N, F200W, F335M, F444W, and F470N. Astronomers use views like this to study how massive young stars, through their jets and radiation, shape their surroundings and influence the next generation of stars and planets.
The image comes from the Webb program, a partnership of NASA, the European Space Agency, and the Canadian Space Agency. It is based on data from observing proposal 12491, with image processing by Alyssa Pagan of the Space Telescope Science Institute, and is credited to NASA, ESA, CSA, and STScI.
来源：GSM·美国（原文链接）
图片来源：韦布空间望远镜近红外相机拍摄的恒星形成区 NGC 7129。图：NASA, ESA, CSA, STScI（公共领域），图像处理：Alyssa Pagan。 / The star-forming region NGC 7129 imaged by the Webb Space Telescope's Near-Infrared Camera. Image: NASA, ESA, CSA, STScI (public domain); image processing by Alyssa Pagan.
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